Capsule intended to contain compressed gases.



. P. G IRON. CAPSULE INTENDED TO CONTAIN COMPRESSED GASES.

APPLICATION FILED AUG.15, 1906.

Patented Nov. 3, 1908] fNVEETOR WITNESSES A ttor' r181 are radar PIERRE GIRQN, OF PARIS, FRANCE.

QAPEULE INTENDED TO CONTAIN GQMPRESSED GB-333$.

its. scales.

Specification of Letters Patent.

Application filed August 15, 1306. Serial Ho. 330,?f3.

*heconstruction of capsules intended to con-- ases and having for their' compressed co to reduce t e cost price of these capsoles and render their action more certain. The ca sules in question are more particularly ti ose known as valve capsules, that I say rechargeable capsules which comprise two distinct principal parts, the receptacle properly so-called and the fitting containing the valve.

Hitherto the body of the receptacle of.

these capsules has been formed from a metal -the extremity constituting the bottom lg closed by a 5})80181. rivet forming a propriate mater al.

contracted "for the reception The other extremity is of the valve arranged in a littin screwed upon a screwb bu'rrmg over 1n the threaded rod fire orifice oi the receptac e.

The improvements which form the ob'ect the present t is special rivet and the screw-threaded rod employed in forming the capsules referred to above in the arrangement of the valve in such a manner to leave the whole of the internal space free for the gas.

The description is given with reference to the accompanying drawing in which Figures 1 and 2'show on a large scale in vertical section and external elevation a capsule in accordance with the invention.

The receptacle (1 of this capsule, which be of any desired capacity, is formed by series of pressing 0 erations, from sheet steel of appropriate t for withstanding the pressure of the gases. These operations are effected in such a manas to leave a suilicicnt thickness of metal at the neck or restricted portion of the 'reeentacle for forming on the edge of the neck a crew-thread l) and a heads comprising intern-ally a chainfer 0 The receptacle it thus formed isadapted for the reception of the cint by compressing a washer of apinvention have for t eir' e necial object to permit of dispensing withv "ckness. and quality gases. When the joint washer e sharp angle of the edges said washer and thereby the outer edges of the ded in the interior of available for the gas may be reduced to lower-recess of the against the fiat Web w be lower recesses.

What I claim closure by reason of the ing in same, a

said neck and internally below, with a passage cess and forming an ex forward as ossible in such valve itsel provided with its rodis embedthe said fitting thus .completely freeing the internal capacity of the receptacle a which therefore remains that it is intended to contain so that the dimensions of the capsule Patented Nov. 3, 1.968.

fitting d, by screwing directly upon it and for forming by the intermediary of a washer e a joint sufficiently strong for the fluidity and the high pressure of the With-standing is tightened up, the

is forced by the undercut annular flange 9 towards the interior of the neck by reason of the chamier c which prevents it from spreading externally as capsules at present employed is the case with in which the oi the neck out the cause leakages.

The fitting cl in whicl i the valve f is mount ed is constitutedin such a manner seat of the valve instead oi being fitting is situated as far formed by a manner that the" the minimum. Into the closure :2 extends askirt e which forms an extensionof the passage p. The pressure of the valve head. against edge of this shirt insures a tighter oint than would be the case were it to the " ress merely tween t e upper and and desire to secure by Let-- ters Patent of the United tates is 1. A capsule for compressed gas, comprising a body having a cylindrical neck threaded on its inner face provided bead at the upper edge thereof beveled on its inner face, in combination with with an external a closure for recessed. above and below to accommodate a valve and adapted.

neck and provided lar undercut flange projecting oversaid bead whereby an interposed washer placed uponthe head is cordined and compressed. against the entering portion of the cooperation of said recessed above and connecting said recesses, a skirt extending into said lower re tension of said pasthat the.

sage, a valve normally located in said lower recess and pressing against the lower edges of said skirt, and provided with a stem passing through the passage connecting said recesses, and e heed working within said upper recess, substantially as described.

3. A capsule for compressed gas coinpris ing s body having a cylindrical neck threaded on its inner face provided with an external bead at the upper edge thereof beveled on its inner face, in combination with e closurefor seid capsule adapted to be screwed into said neck and provided with an external undercut flange projecting over said bead, and recessed internally above and below, with a passage scene;

connecting said recesses, e skirt extending into said lower recess, end forming an extension of said passage, a valve normally located e einst the lower edges of said skirt, and provided with a stem pessingthrough the passage connecting said recesses, and a head working within said upper recess, substantially as described.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing Witnesses.

' PIERRE GIRON. V Witnesses:

BENJAMIN BLoioE,

H. C. COKE. 

